Hello, I'm using Stumbleupon, Digg, Facebook, Twitter etc.. You can also go for the Same and you are also Using very effective sites, both are very effective, but if you can then use more sites for Bookmarking, which contain High page Rank.It Will be Great for Your Site Page Rank and For Traffic on your Site._____________________seoinnovators.com

Yes there so many Social Bookmarking site but use of 10 to 15 sites are more effective then others.And that derives more traffic then Others as those all have High PR and high number of Users. It means that Less time consuming, less effort and high result.Here some sites which I've mentioned below.Delicious, stumbleupon,Technorati, Connotea, Reddit, Twitter, Facebook, Viadeo, Diigo, Blinklist, Folkd, jumtags, Google+, tumblr, multiply, Digg.All those sites are very Popular.______________________seoinnovators.com